Xavier Gironés David Robert Ramon Carbó-Dorca TGSA: A molecular superposition program based on topo-geometrical considerations. 255-263 2001 22 Journal of Computational Chemistry 2 http://dx.doi.org/10.1002/1096-987X(20010130)22:2<255::AID-JCC12>3.0.CO;2-2 db/journals/jcc/jcc22.html#GironesRC01